Mozilla Firefox up to 69.0 Pointer Lock requestPointerLock input validation

Summaryinfo

A vulnerability has been found in Mozilla Firefox up to 69.0 and classified as critical. Impacted is the function requestPointerLock of the component Pointer Lock Handler. This manipulation causes input validation. This vulnerability is handled as CVE-2019-11754. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Mozilla Firefox up to 69.0 (Web Browser) and classified as critical. Affected by this vulnerability is the function requestPointerLock of the component Pointer Lock Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

When the pointer lock is enabled by a website though requestPointerLock(), no user notification is given. This could allow a malicious website to hijack the mouse pointer and confuse users. This vulnerability affects Firefox < 69.0.1.

The weakness was released 09/27/2019 as MFSA 2019-31 as confirmed security advisory (Website). It is possible to read the advisory at mozilla.org. This vulnerability is known as CVE-2019-11754 since 05/03/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/11/2020).

Upgrading to version 69.0.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Entries connected to this vulnerability are available at VDB-142410, VDB-142408 and VDB-142407. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox

Version

• 69.0

License

• open-source

Website

• Vendor: https://www.mozilla.org/
• Product: https://www.mozilla.org/en-US/firefox/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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